IOS 反射获取属性，序列化成JSON

继上篇序列化成xml，这篇介绍如何序列化成JSON对象。

只是稍有改动

ConvertObjToJSON.h

//
//  ConvertObjToJSON.h
//
//
//  Created by Elliott on 13-3-5.
//  Copyright (c) 2013年 Elliott. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface ConvertObjToJSON : NSObject

+(NSString *)Convert:(id)obj;

@end

ConvertObjToJSON.m

//
//  ConvertObjToJSON.m
//
//
//  Created by Elliott on 13-3-5.
//  Copyright (c) 2013年 Elliott. All rights reserved.
//
#import <objc/runtime.h>
#import "ConvertObjToJSON.h"

@implementation ConvertObjToJSON

+(NSString *)Convert:(id)obj
{
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList([obj class], &outCount);
NSString *xml=@"{";
for(i = 0; i < outCount; i++) {
objc_property_t property = properties[i];
NSString *key=[[NSString alloc]initWithCString:property_getName(property) encoding:NSUTF8StringEncoding];
id value=[obj valueForKey:key];

if (value!=nil) {
//IF NOT NSSTRING,LOOP!!!!!!
if (![value isKindOfClass:[NSString class]]) {
xml=[xml stringByAppendingFormat:@"%@:%@,",key,[ConvertObjToJSON Convert:[obj valueForKey:key]]];
}
else
{
xml=[xml stringByAppendingFormat:@"%@:'%@',",key,value];
}
}
else
{
xml=[xml stringByAppendingFormat:@"%@:'%@',",key,@""];
}
}
xml=[xml substringToIndex:xml.length-1];
xml=[xml stringByAppendingString:@"}"];

//NSLog(@"结果：%@",xml);

free(properties);

return xml;
}
@end

调用方式和上一篇xml的一样。

目前只支持NSSTRING和自定义类。